#include <sys/types.h>
#include <sys/socket.h>

#include <netinet/in.h>
#include <arpa/inet.h>

#include <netinet/icmp6.h>

#include <stdio.h>
#include <stdlib.h>

int main(void);

int
main()
{
   struct icmp6_hdr header;
   printf("%lu\n", sizeof(header));

   return 0;
}
